updating .gitignore with github recommendations for node projects

removing node_modules/* to prevent spurious updates after 'npm install'
Merge pull request #6 from risacher/master

remove node_modules/* and update .gitignore
mention npm install in README
Merge pull request #7 from nickolay/patch-1

mention "npm install" in README
Initial Sequelize integration.

Added orm module to abstract Sequelize usage to some degree. ORM module
handles the configuration and instantiation of Sequelize. Models are
defined and instantiated from models/*

Tested only against SQLite.

Faily new to nodejs so I probably messed up with something.
Merge pull request #8 from desyncr/integrate-sequelize

Initial Sequelize integration.
Created PostgreSQL schema.
Fixed default data insert.
Merge pull request #10 from asommer70/postgres

Created PostgreSQL schema.
Allow the server port to be configurable via config.js
Merge pull request #11 from snicker/master

Allow the server port to be configurable via config.js